Test new feature qemu-img compare --stat. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- .../qemu-iotests/tests/qemu-img-compare-stat | 88 +++++++++++++++ .../tests/qemu-img-compare-stat.out | 106 ++++++++++++++++++ 2 files changed, 194 insertions(+) create mode 100755 tests/qemu-iotests/tests/qemu-img-compare-stat create mode 100644 tests/qemu-iotests/tests/qemu-img-compare-stat.out
diff --git a/tests/qemu-iotests/tests/qemu-img-compare-stat b/tests/qemu-iotests/tests/qemu-img-compare-stat new file mode 100755 index 0000000000..e2c0bcc7ef --- /dev/null +++ b/tests/qemu-iotests/tests/qemu-img-compare-stat @@ -0,0 +1,88 @@ +#!/usr/bin/env python3 +# +# Test qemu-img compare --stat +# +# Copyright (c) 2021 Virtuozzo International GmbH. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +import iotests +from iotests import qemu_img_create, qemu_io, qemu_img_log, log + +iotests.script_initialize(supported_fmts=['qcow2']) + +a, b, c = iotests.file_path('a', 'b', 'c') + +log('= compare two images =\n') + +qemu_img_create('-f', iotests.imgfmt, a, '1M') +qemu_img_create('-f', iotests.imgfmt, b, '1M') + +# equal data and zero +qemu_io('-c', 'write -z 0 64K', a) +qemu_io('-c', 'write -P 0 0 64K', b) + +# different data +qemu_io('-c', 'write -P 1 64K 64K', a) +qemu_io('-c', 'write -P 0 64K 64K', b) + +# equal data +qemu_io('-c', 'write -P 2 128K 64K', a) +qemu_io('-c', 'write -P 2 128K 64K', b) + +# equal unallocated and allocated zero +qemu_io('-c', 'write -z 192K 64K', b) + +# unequal data and unallocated zero +qemu_io('-c', 'write -P 3 256K 64K', a) + +qemu_img_log('compare', '--stat', a, b) + +log('\n= compare two increments =\n') + +qemu_img_create('-f', iotests.imgfmt, a, '1M') +qemu_img_create('-f', iotests.imgfmt, '-b', a, '-F', iotests.imgfmt, b, '1M') +qemu_img_create('-f', iotests.imgfmt, '-b', b, '-F', iotests.imgfmt, c, '1M') + +qemu_io('-c', 'write -P 1 0 1M', a) +qemu_io('-c', 'write -P 2 0 64K', b) +qemu_io('-c', 'write -P 3 64K 64K', c) +qemu_img_log('compare', '--stat', b, c) + +log('\n= compare two increments with --shallow=\n') +qemu_img_log('compare', '--stat', '--shallow', b, c) + +log('\n= compare images of different size =\n') +qemu_img_create('-f', iotests.imgfmt, a, '1M') +qemu_img_create('-f', iotests.imgfmt, b, '2M') +qemu_io('-c', 'write -P 1 0 1M', a) +qemu_io('-c', 'write -P 2 0 1M', b) +qemu_io('-c', 'write -P 1 1M 64K', b) +qemu_io('-c', f'write -z {1024 + 64 * 2}K 64K', b) +qemu_io('-c', f'write -P 0 {1024 + 64 * 3}K 64K', b) +qemu_img_log('compare', '--stat', a, b) + +log('\n= compare images with only 512 bytes different =\n') +qemu_img_create('-f', iotests.imgfmt, a, '1M') +qemu_img_create('-f', iotests.imgfmt, b, '1M') +qemu_io('-c', 'write -P 1 0 1M', a) +qemu_io('-c', 'write -P 2 0 512', b) +qemu_io('-c', f'write -P 1 512 {1024 * 1024 - 512}', b) +qemu_img_log('compare', '--stat', a, b) + +log('\n= compare images with only 512 bytes different, block-size=4K =\n') +qemu_img_log('compare', '--stat', '--block-size', '4K', a, b) + +log('\n= end =') diff --git a/tests/qemu-iotests/tests/qemu-img-compare-stat.out b/tests/qemu-iotests/tests/qemu-img-compare-stat.out new file mode 100644 index 0000000000..0dec76feb6 --- /dev/null +++ b/tests/qemu-iotests/tests/qemu-img-compare-stat.out @@ -0,0 +1,106 @@ += compare two images = + +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +_Z__ -> _Z__ 720896 bytes (704 KiB) 68.8% +_Z__ -> _ZA_ 65536 bytes (64 KiB) 6.2% +D_A_ -> D_A_ 65536 bytes (64 KiB) 6.2% +_ZA_ -> D_A_ 65536 bytes (64 KiB) 6.2% + +Unequal: +D_A_ -> _Z__ 65536 bytes (64 KiB) 6.2% +D_A_ -> D_A_ 65536 bytes (64 KiB) 6.2% + + += compare two increments = + +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +D_A_ -> D_A_ 983040 bytes (960 KiB) 93.8% + +Unequal: +D_A_ -> D_A_ 65536 bytes (64 KiB) 6.2% + + += compare two increments with --shallow= + +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +_Z__ -> _Z__ 917504 bytes (896 KiB) 87.5% + +Unequal: +_Z__ -> D_A_ 65536 bytes (64 KiB) 6.2% +D_A_ -> _Z__ 65536 bytes (64 KiB) 6.2% + + += compare images of different size = + +Warning: Image size mismatch! +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +_Z_E -> _Z__ 851968 bytes (832 KiB) 40.6% +_Z_E -> D_A_ 65536 bytes (64 KiB) 3.1% +_Z_E -> _ZA_ 65536 bytes (64 KiB) 3.1% + +Unequal: +D_A_ -> D_A_ 1048576 bytes (1 MiB) 50.0% +_Z_E -> D_A_ 65536 bytes (64 KiB) 3.1% + + += compare images with only 512 bytes different = + +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +D_A_ -> D_A_ 983040 bytes (960 KiB) 93.8% + +Unequal: +D_A_ -> D_A_ 65536 bytes (64 KiB) 6.2% + + += compare images with only 512 bytes different, block-size=4K = + +Compare stats: +Agenda +D: DATA +Z: ZERO +A: ALLOCATED +E: after end of file + +Equal: +D_A_ -> D_A_ 1044480 bytes (0.996 MiB) 99.6% + +Unequal: +D_A_ -> D_A_ 4096 bytes (4 KiB) 0.4% + + += end = -- 2.31.1
